Reading/monitoring file on each update by using java code

Hello, Thanks for help in advance..
I want to read a log file automatically on each time when log file get update . Actually i am reading that file one time but i have to read that file when log is added to that file.
Thanks

File change notification is not supported on all os yet.
So I do not think it is available in java. You may have
to write in C/C++ code for os which supports this feature.
Or use file monitoring tools.

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